NHTSA ID Number: 10171021
Manufacturer Communication Number: 36-005
TSB/Document Date: 2020-02-05
Summary
Information Only - Driver Performance Assistance (DPA) Coasting and Braking Scores Not Incrementing, Stays at 50%. The average score will never change nor create driver assistance popups based upon driver’s actions. A future software update will resolve the issue. This bulletin will be updated when the software update becomes available.
36-005 DPA Inop
Page 1 of 2
Service Bulletin
36-005
Section
36 - Supplemental Information Devices
Description
Driver Performance Assistant (DPA) does not move from 50%
Release Date
1/31/2020
Introduction
Peterbilt
has determined that certain MY2020 Model 567 and 579 CVMUX chassis without Adaptive Cruise Control
(ACC)-Radar built after 01/06/2020 may experience Driver Performance Assistance (DPA) Coasting and Braking Scores
are not incrementing and remain at 50%. The average score will never change and driver assistance popups will not
display. A future software update will resolve the issue.
The affected CECU software version is P30-1041-111.
Resolution
Information Only
Inform the customer experiencing the issue that there is not an immediate resolution available. A CECU Software Version
(via ESA) to remedy is under development and this bulletin will be updated.
A servicing dealer may create a list of customers experiencing this issue in order to contact those customers when the
software update becomes available.
Procedure
This bulletin will be updated when the software becomes available.
Authored by: NG
Access to PACCAR’s Enterprise Portal is provided as a benefit of doing business with PACCAR. All applications and content accessed
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36-005 DPA Inop
Page 2 of 2
through this system are confidential and proprietary and the property of PACCAR Inc and its suppliers, and must be kept strictly
confidential pursuant to the contract licensing such access. Disclosure, publication, release or distribution of any material found on
PACCAR systems to any person other than employees with a need to know such information is strictly prohibited. All activity on this
system is monitored. If PACCAR suspects or discovers any unauthorized activity, access may be immediately terminated without
prior notification. Violators may be subject to legal action.
© Copyright 2020 PACCAR Inc. All rights reserved. We welcome your feedback on this page. For technical questions or concerns
about this page, please contact the DealerNet Webmaster.
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TIB 36-005 - Driver Performance Assistant DPA Does Not Move from 50%
Page 1 of 2
Technical Information Bulletin
36-005
Section
Display - 36
Subject
Driver Performance Assistant DPA Does Not Move from 50%.
Release Date
1/31/2020
Condition
Driver Performance Assistance (DPA) Coasting and Braking Scores Not Incrementing, Stays at 50%. The average score will never change nor
create driver assistance popups based upon driver’s actions.
Chassis Affected
Approximately 400 chassis, all are MY2020 T680, T880, and W990 CVMUX chassis without Adaptive Cruise Control (ACC)-Radar built from
01/06/20 through the middle or end of February 2020 (when the new software is expected to implement in production). The affected CECU
software version is P30-1041-111.
Action
Information Only
Inform the customer this feature has a bug and will not be fixed until new CECU Software Version (via ESA) is released. ETA ~ mid-to-late
February. Kenworth advises you to create a running list of customers who want this feature enabled as soon as the software update becomes
available so you can quickly contact those customers.
Procedure
This bulletin will be updated when the software becomes available.
Authored by: OF
https://eportal.paccar.com/dealer/uskw/en/service/vehiclebulletins/vehiclefieldservice/Pages... 2/3/2020
TIB 36-005 - Driver Performance Assistant DPA Does Not Move from 50%
Page 2 of 2
Access to PACCAR’s Enterprise Portal is provided as a benefit of doing business with PACCAR. All applications and content accessed through this
system are confidential and proprietary and the property of PACCAR Inc and its suppliers, and must be kept strictly confidential pursuant to the
contract licensing such access. Disclosure, publication, release or distribution of any material found on PACCAR systems to any person other
than employees with a need to know such information is strictly prohibited. All activity on this system is monitored. If PACCAR suspects or
discovers any unauthorized activity, access may be immediately terminated without prior notification. Violators may be subject to legal action.
© Copyright 2020 PACCAR Inc. All rights reserved. We welcome your feedback on this page. For technical questions or concerns about this
page, please contact the DealerNet Webmaster.
https://eportal.paccar.com/dealer/uskw/en/service/vehiclebulletins/vehiclefieldservice/Pages... 2/3/2020
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TSB/Document ID: 36-005
Replacement Service Bulletin Number:
MFR Communication Date: 2020-01-31
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: VEHICLE SPEED CONTROL
MFR Component System:
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